body {
    width: 500px;
    height: 800px;
    margin: 0;
    padding: 0;
    /* overflow: hidden; */
    background: linear-gradient(to bottom, #ffffff, #e6f2ff);
    background-attachment: fixed;
}

#app {
    width: 100%;
    height: 100%;
}

.panda-icon {
    margin-top: -20px; /* 调整这个值来让熊猫"蹲"在表单上方 */
  }
